EP1600684A1 - Adjusting device particularly for light curtains or light barriers and method of adjusting - Google Patents
Adjusting device particularly for light curtains or light barriers and method of adjusting Download PDFInfo
- Publication number
- EP1600684A1 EP1600684A1 EP05008029A EP05008029A EP1600684A1 EP 1600684 A1 EP1600684 A1 EP 1600684A1 EP 05008029 A EP05008029 A EP 05008029A EP 05008029 A EP05008029 A EP 05008029A EP 1600684 A1 EP1600684 A1 EP 1600684A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- adjusting device
- housing
- guide
- focusing means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
- F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
- F16P3/14—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
- F16P3/144—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact using light grids
Definitions
- the invention relates to an adjusting device according to the preamble of the claim 1 and a light barrier or light grid according to the preamble of Claim 11 and a method for adjustment.
- Such adjusting devices are usually used to light barriers or light curtain to align each other.
- light barriers or light grids according to the one-way principle are the or the Light emitter in a first housing and the light receiver (s) in one second housing installed. So that the light emitter on one side of a too monitoring access area with the light receivers on the other Side of the access area, it is necessary to the two housings align each other, d. H. she may need to be linearly shifted, rotated or tilted. For this Basically, it is known to align these housing so-called alignment aids to use. So, especially at long distances from the light emitter to the light receiver, the orientation of the housing with a built-in or external adaptable riflescope.
- the disadvantage is that the associated costs and the required space are very high.
- the time required for aligning time is right high.
- the adjustment using the own light barrier / Light curtain signal With this method, the alignment becomes the light transmitter and the light receiver changed until a received signal has reached a maximum value. It is known, for example depending on the size of the received signal, the flashing frequency of a Change display diode or output, for example, an acoustic signal.
- EP 0 889 332 B1 Another device for aligning the two housings is known from EP 0 889 332 B1.
- This document describes a method and a device in which an alignment light transmitter for emitting a directional beam is present in each housing. The point of impact of the beam is determined with respect to a predetermined reference point and, if appropriate, the mutual alignment of the housing matched.
- This type of alignment has the disadvantage that in the mutual geometric alignment of the two housings it is necessary to always be able to see the opposite housing in order to perform the alignment can. This can lead to problems, especially at long distances and high ambient brightness.
- This type of alignment aid is particularly difficult when the light beams of the light barrier / light grid are guided with deflecting mirrors through an angled access area.
- this alignment is due to the fact that a plurality of precisely adjusted deflection mirror are necessary, a total of expensive. In addition, a lot of time is needed for the alignment.
- the invention is based on the object, an improved adjusting device to provide, with a housing in a simple manner to a beam can be precisely aligned.
- Another task is an improved one Specify photocell or light grid and a method for adjustment.
- the advantage of this inventive design of the first housing with the adjusting device for alignment with the directional beam emitted by the opposite housing allows the optical axes of the built-in this housing light emitter / light receiver to align exactly on the second housing. Since the alignment device of the first housing is displayed on the directional beam directly in the housing with the adjustment device, it is also not necessary that the alignment of this first housing, the second housing must be viewed. The use of the alignment aid is easily possible with large distances of the housing and the use of deflecting mirrors.
- the light exit opening can be mounted anywhere outside the housing become.
- the light exit opening in any direction to be ordered. This makes it possible the adjustment result from a desired direction and the adjustment result to a desired To guide body outside the case.
- the invention provides several To arrange light guides symmetrically in the focal plane. This will cause the directional beam directed at not optimal adjustment in different light inlet openings.
- the light exit openings are geometrically to the light entry openings arranged. This allows the adjustment information directly from Users are conclusively evaluated. The geometric arrangement leaves one direct inference to the alignment. The adjustment indicator relates thus directly on the orientation of the housing on the beam.
- the light guide as an image guide train.
- the adjustment indicator over the light exit opening of the image guide can be adapted in size to the requirements of the application.
- the alignment information is displayed enlarged.
- the adjustment indicator is in this solution a display panel within which the Adjustment result is displayed. If the orientation of the housing is changed, Thus, the position of the directional beam changes continuously on the light exit opening of the picture director.
- the light entrance opening of the image guide can be in size to the requirements the focal plane to be adjusted. This allows the display of the possible Expand adjustment area.
- the focusing means will be advantageously formed as a lens. This has the advantage that the light rays are evaluated directly behind the lens can. The evaluation of the directional steel is thus behind the entry area the directional beam.
- the focusing means as Mirror formed with focal point. The light rays are deflected and can be evaluated in a favorable direction. This is for Example of advantage if certain housing characteristics are taken into account have to.
- Such light transmitters and light receivers are present in light barriers and light grids. To increase the availability of such systems, precise alignment of the light emitters with the light receivers is necessary.
- the adjusting device can be accommodated in each case two associated light emitter and light receiver. This makes it possible to align the light receiver and the light emitter equally.
- FIG. 1 shows a light grid with a first housing 2 and a second housing 18.
- first housing 2 In the first housing 2 are a plurality of light emitter 28 with transmitting optics 26 which correspond to receiving optics 24 in the second housing 18.
- the optical axis of the light emitter 28 and the optical axis of the Light receiver 22 are adjusted exactly within the respective housing.
- second housing 18 While a Ausrichtlichtsender 20 is mounted
- Directional beam 4 to the optical axis of the receiving optics 24 aligned in parallel is.
- This directional beam 4 impinges in the first housing 2 on an adjusting device 1, which aligns itself with the light transmitters 28 and the transmission optics 26 is, so that with correct alignment of the beam 4 on the adjusting device 1 the light grid is aligned.
- Figure 2 shows in this first embodiment, the adjusting device 1 with a Light guide 8 in the housing 2.
- the beam 4 meets a focusing means 6.
- the focusing means 6 is advantageously designed as a lens.
- a focal plane 12 of the focusing means 6 is the light guide 8 with his Light entrance opening 10 attached.
- the light guide 8 is advantageous centric mounted in the focal plane 12 of the light guide 8.
- a light exit opening 14 of the light guide is advantageous to the viewer on the housing 2 or mounted outside of the housing 2.
- the housing 2 in a Angle 32 changes then the directional beam 4 hits the focusing means 6 not in the light inlet opening 10 of the light guide 8. In such a not optimal alignment is less or via the light exit opening 14 no light is spent anymore. In this way, an adjustment of the housing 2 on the beam 4 and thus an adjustment of the light emitter 28 the Light receiver 22.
- FIG 3 shows a further embodiment of the adjusting device 1 with a Image guide 16 instead of the light guide 8 in the housing 2.
- the image guide 16 is Centric in the focal plane 12 of the focusing means 6 with its light inlet opening 10 attached. Now hits the beam at different angles on the focusing means 6, this occurs at different positions in the Light entrance opening 10 of the image guide 16 a. The different entry positions are imaged on the light exit opening 14 of the image guide 16 and displayed to the viewer. Now, the housing 2 at any angle 32 changes and hits the beam 4 on the focusing means 6, and in the image conductor 16, it is at a non-optimal orientation of the beam. 4 not shown centrally in the light exit opening 14.
- FIG. 4 shows a third embodiment of the adjusting device 1 with several Light guides 8.
- the incoming directional beam 4 strikes the focusing means 6 and thereafter to one of a plurality of light entry openings 10 of a plurality Optical fibers 8 which are mounted symmetrically in the focal plane 12.
- the beam 4 in different light guide. 8 directed.
- the geometric arrangement of the light entry openings 10 corresponds doing the geometric arrangement of the light exit openings 14.
- FIGS. 5 to 7 show exemplary embodiments of the alignment method the adjusting device 1 according to the third embodiment.
- the Adjusting device 1 is rotated in the direction of arrow 34 about the axis 36.
- the light guides 8 are arranged as in the figure 4. The viewer looks up from the front the adjusting device 1. Is the adjusting device in the direction of arrow 34 to the Axis 36 is rotated, the left indicator lights up from the viewer. Of the The viewer is thus requested the adjusting device 1 opposite to Arrow direction 34 to rotate about the axis 36.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Geophysics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Optical Communication System (AREA)
- Telescopes (AREA)
- Optical Couplings Of Light Guides (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
Die Erfindung betrifft eine Justiervorrichtung nach dem Oberbegriff des Anspruchs
1 sowie eine Lichtschranke oder Lichtgitter nach dem Oberbegriff des
Anspruchs 11 und ein Verfahren zur Justage.The invention relates to an adjusting device according to the preamble of the
Derartige Justiervorrichtungen werden in der Regel verwendet um Lichtschranken oder Lichtgitter aufeinander auszurichten.Such adjusting devices are usually used to light barriers or light curtain to align each other.
In Lichtschranken bzw. Lichtgittern nach dem Einwegprinzip sind der bzw. die Lichtsender in einem ersten Gehäuse und der bzw. die Lichtempfänger in einem zweiten Gehäuse eingebaut. Damit die Lichtsender auf der einen Seite eines zu überwachenden Zugangsbereiches mit den Lichtempfängern auf der anderen Seite des Zugangsbereiches miteinander korrespondieren können ist es notwendig, die beiden Gehäuse gegenseitig aufeinander auszurichten, d. h. sie müssen ggf. linear verschoben, gedreht oder gekippt werden. Aus diesem Grunde ist es bekannt, zum Ausrichten dieser Gehäuse sogenannte Ausrichthilfen zu verwenden. So kann besonders bei großen Abständen vom Lichtsender zum Lichtempfänger die Ausrichtung der Gehäuse mit einem fest eingebauten oder externen adaptierbaren Zielfernrohr durchgeführt werden. In light barriers or light grids according to the one-way principle are the or the Light emitter in a first housing and the light receiver (s) in one second housing installed. So that the light emitter on one side of a too monitoring access area with the light receivers on the other Side of the access area, it is necessary to the two housings align each other, d. H. she may need to be linearly shifted, rotated or tilted. For this Basically, it is known to align these housing so-called alignment aids to use. So, especially at long distances from the light emitter to the light receiver, the orientation of the housing with a built-in or external adaptable riflescope.
Nachteilig ist, dass die damit verbundenen Kosten und der benötigte Platzbedarf sehr hoch sind. Der zum Ausrichten erforderliche Zeitaufwand ist dabei recht hoch.The disadvantage is that the associated costs and the required space are very high. The time required for aligning time is right high.
Weiterhin ist bekannt, die Justage unter Zuhilfenahme des eigenen Lichtschranken-/ Lichtgittersignals vorzunehmen. Bei dieser Methode wird die Ausrichtung des Lichtsenders und des Lichtempfängers so lange verändert, bis ein Empfangssignal einen maximalen Wert erreicht hat. Dazu ist es bekannt, zum Beispiel in Abhängigkeit von der Größe des Empfangssignals die Blinkfrequenz einer Anzeigediode zu verändern oder beispielsweise ein akustisches Signal auszugeben.Furthermore, it is known, the adjustment using the own light barrier / Light curtain signal. With this method, the alignment becomes the light transmitter and the light receiver changed until a received signal has reached a maximum value. It is known, for example depending on the size of the received signal, the flashing frequency of a Change display diode or output, for example, an acoustic signal.
Eine weitere Einrichtung zum Ausrichten der beiden Gehäuse ist aus der EP 0
889 332 B1 bekannt. In dieser Druckschrift wird ein Verfahren und eine Vorrichtung
beschrieben, bei der in jedem Gehäuse ein Ausrichtlichtsender zum
Aussenden eines Richtstrahles vorhanden ist. Der Auftreffpunkt des Richtstrahls
wird bezüglich eines vorbestimmten Referenzpunktes festgestellt und gegebenenfalls
die gegenseitige Ausrichtung der Gehäuse aufeinander abgestimmt.
Diese Art der Ausrichtung hat den Nachteil, dass es bei der gegenseitigen geometrischen
Ausrichtung der beiden Gehäuse notwendig ist, immer das gegenüberliegende
Gehäuse einsehen zu können, um die Ausrichtung durchführen zu
können. Dies kann insbesondere bei großen Abständen und hoher Umgebungshelligkeit
zu Problemen führen. Besonders schwierig ist diese Art der Ausrichthilfe
dann, wenn die Lichtstrahlen der Lichtschranke/Lichtgitter mit Umlenkspiegeln
durch einen abgewinkelten Zugangsbereich geführt werden. Außerdem ist
diese Ausrichthilfe durch die Tatsache das mehrere genau justierte Umlenkspiegel
notwendig sind, insgesamt kostenaufwendig. Zudem wird viel Zeit für die
Ausrichtung benötigt.Another device for aligning the two housings is known from EP 0 889 332 B1. This document describes a method and a device in which an alignment light transmitter for emitting a directional beam is present in each housing. The point of impact of the beam is determined with respect to a predetermined reference point and, if appropriate, the mutual alignment of the housing matched.
This type of alignment has the disadvantage that in the mutual geometric alignment of the two housings it is necessary to always be able to see the opposite housing in order to perform the alignment can. This can lead to problems, especially at long distances and high ambient brightness. This type of alignment aid is particularly difficult when the light beams of the light barrier / light grid are guided with deflecting mirrors through an angled access area. In addition, this alignment is due to the fact that a plurality of precisely adjusted deflection mirror are necessary, a total of expensive. In addition, a lot of time is needed for the alignment.
Der Erfindung liegt die Aufgabe zugrunde, eine verbesserte Justiervorrichtung bereitzustellen, mit der ein Gehäuse in einfacher Weise zu einem Richtstrahl genau ausgerichtet werden kann. Eine weitere Aufgabe ist es eine verbesserte Lichtschranke oder Lichtgitter anzugeben sowie ein Verfahren zur Justage. The invention is based on the object, an improved adjusting device to provide, with a housing in a simple manner to a beam can be precisely aligned. Another task is an improved one Specify photocell or light grid and a method for adjustment.
Der auf eine Vorrichtung gerichtete Teil der Aufgabe wird erfindungsgemäß gemäß
Anspruch 1 dadurch gelöst, dass zur Ausrichtung eines Gehäuses das von
einem Richtstrahl beaufschlagt wird, wenigstens ein Fokussierungsmittel und
wenigstens ein Lichtleiter derart angeordnet sind, dass eine Lichteintrittsöffnung
des Lichtleiters sich in einer Brennebene des Fokussierungsmittels befindet und
eine Lichtaustrittsöffnung des Lichtleiters sichtbar angeordnet ist, mit deren Hilfe
die optischen Achsen des Gehäuses auf den Richtstrahl ausgerichtet werden.The directed to a device part of the task according to the invention according to
Der Vorteil dieser erfindungsgemäßen Ausbildung des ersten Gehäuses mit der
Justiervorrichtung zur Ausrichtung auf den vom gegenüberliegenden Gehäuse
ausgesandten Richtstrahl, ermöglicht die optischen Achsen der in diesem Gehäuse
eingebauten Lichtsender/Lichtempfänger exakt auf das zweite Gehäuse
auszurichten. Da mit der Justageeinrichtung der Ausrichtzustand des ersten
Gehäuses auf den Richtstrahl direkt im Gehäuse angezeigt wird, ist es auch
nicht notwendig, dass zur Ausrichtung dieses ersten Gehäuses das zweite Gehäuse
eingesehen werden muss.
Der Einsatz der Ausrichthilfe ist bei großen Abständen der Gehäuse und beim
Einsatz von Umlenkspiegeln problemlos möglich.The advantage of this inventive design of the first housing with the adjusting device for alignment with the directional beam emitted by the opposite housing, allows the optical axes of the built-in this housing light emitter / light receiver to align exactly on the second housing. Since the alignment device of the first housing is displayed on the directional beam directly in the housing with the adjustment device, it is also not necessary that the alignment of this first housing, the second housing must be viewed.
The use of the alignment aid is easily possible with large distances of the housing and the use of deflecting mirrors.
Vorteilhaft kann die Lichtaustrittsöffnung beliebig außerhalb des Gehäuses angebracht werden. Dabei kann die Lichtaustrittsöffnung in einer beliebigen Richtung angeordnet werden. Dadurch ist es möglich das Justageergebnis aus einer gewünschten Richtung einzusehen und das Justageergebnis an eine gewünschte Stelle außerhalb des Gehäuses zu leiten.Advantageously, the light exit opening can be mounted anywhere outside the housing become. In this case, the light exit opening in any direction to be ordered. This makes it possible the adjustment result from a desired direction and the adjustment result to a desired To guide body outside the case.
Um die Justageinformation zu verbessern sieht die Erfindung vor, mehrere Lichtleiter in der Brennebene symmetrisch anzuordnen. Dadurch wird der Richtstrahl bei nicht optimaler Justage in unterschiedliche Lichtteintrittsöffnungen gelenkt. Vorteilhaft werden die Lichtaustrittsöffnungen geometrisch zu den Lichteintrittsöffnungen angeordnet. Dadurch kann die Justageinformation direkt vom Anwender schlüssig ausgewertet werden. Die geometrische Anordnung lässt einen direkten Rückschluss auf die Ausrichtung zu. Die Justageanzeige bezieht sich damit direkt auf die Ausrichtung des Gehäuses auf den Richtstrahl. In order to improve the adjustment information, the invention provides several To arrange light guides symmetrically in the focal plane. This will cause the directional beam directed at not optimal adjustment in different light inlet openings. Advantageously, the light exit openings are geometrically to the light entry openings arranged. This allows the adjustment information directly from Users are conclusively evaluated. The geometric arrangement leaves one direct inference to the alignment. The adjustment indicator relates thus directly on the orientation of the housing on the beam.
In einer zweckmäßigen Weiterbildung ist es vorgesehen den Lichtleiter als Bildleiter auszubilden. Die Justageanzeige über die Lichtaustrittsöffnung des Bildleiters kann in der Größe den Erfordernissen der Anwendung angepasst werden. Erfindungsgemäß wird dabei die Ausrichtinformation vergrößert abgebildet. Die Justageanzeige ist bei dieser Lösung ein Anzeigefeld innerhalb dessen das Justageergebnis angezeigt wird. Wird die Ausrichtung des Gehäuses verändert, so verändert sich kontinuierlich die Position des Richtstrahles auf der Lichtaustrittsöffnung des Bildleiters.In an expedient development, it is provided the light guide as an image guide train. The adjustment indicator over the light exit opening of the image guide can be adapted in size to the requirements of the application. According to the invention, the alignment information is displayed enlarged. The adjustment indicator is in this solution a display panel within which the Adjustment result is displayed. If the orientation of the housing is changed, Thus, the position of the directional beam changes continuously on the light exit opening of the picture director.
Die Lichteintrittsöffnung des Bildleiters kann in der Größe den Erfordernissen an die Brennebene angepasst werden. Damit lässt sich die Anzeige des möglichen Justagebereiches erweitern.The light entrance opening of the image guide can be in size to the requirements the focal plane to be adjusted. This allows the display of the possible Expand adjustment area.
Das Fokussierungsmittel wird vorteilhaft als Linse ausgebildet werden. Dies hat den Vorteil, dass die Lichtstrahlen direkt hinter der Linse ausgewertet werden können. Die Auswertung des Richtstahles ist damit hinter dem Eintrittsbereichs des Richtstrahles. In einer weiteren Varianten wird das Fokussierungsmittel als Spiegel mit Brennpunkt ausgebildet. Dabei werden die Lichtstrahlen umgelenkt und können in einer vorteilhaften Richtung ausgewertet werden. Dies ist zum Beispiel von Vorteil wenn bestimmte Gehäuseausprägungen berücksichtigt werden müssen.The focusing means will be advantageously formed as a lens. this has the advantage that the light rays are evaluated directly behind the lens can. The evaluation of the directional steel is thus behind the entry area the directional beam. In a further variant, the focusing means as Mirror formed with focal point. The light rays are deflected and can be evaluated in a favorable direction. This is for Example of advantage if certain housing characteristics are taken into account have to.
Solche Lichtsender und Lichtempfänger sind in Lichtschranken und Lichtgittern
vorhanden. Um die Verfügbarkeit solcher Systeme zu erhöhen ist eine genaue
Ausrichtung der Lichtsender auf die Lichtempfänger notwendig.
Vorteilhaft kann die Justiervorrichtung in jedem jeweils zweier zugeordneter
Lichtsender und Lichtempfänger untergebracht werden. Damit lassen sich Lichtempfänger
und Lichtsender gleichermaßen ausrichten.Such light transmitters and light receivers are present in light barriers and light grids. To increase the availability of such systems, precise alignment of the light emitters with the light receivers is necessary.
Advantageously, the adjusting device can be accommodated in each case two associated light emitter and light receiver. This makes it possible to align the light receiver and the light emitter equally.
Bei dem erfindungsgemäßen Verfahren zur Justage des Gehäuses wird der Richtstrahl durch das Fokussierungsmittel in die Brennebene abgebildet. Bei parallel eintreffenden Strahlen werden diese in einem Brennpunkt abgebildet. Ändert sich der Winkel des eintreffenden Richtstrahles so wird der Richtstrahl nach der Fokussierung auf einen anderen Punkt in der Brennebene abgebildet. Der Richtstrahl erreicht damit unterschiedliche Lichteintrittsöffnungen des Lichtleiters.In the inventive method for adjusting the housing of the Directional beam imaged by the focusing means in the focal plane. At parallel incoming rays are imaged in a focal point. change The angle of the incoming beam thus the directional beam is focusing on a different point in the focal plane. Of the Directional beam thus reaches different light entry openings of the light guide.
Im Folgenden wird die Erfindung an Hand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen im Einzelnen erläutert.In the following the invention with reference to exemplary embodiments with reference explained in detail on the drawings.
In den Zeichnungen zeigen:
eine schematische Darstellung eines erfindungsgemäßen Lichtgitters;
eine schematische Darstellung einer erfindungsgemäßen Justiervorrichtung;
eine schematische Darstellung einer zweiten Ausführungsform der erfindungsgemäßen Justiervorrichtung;
eine schematische Darstellung einer dritten Ausführungsform der erfindungsgemäßen Justiervorrichtung;
eine schematische Darstellung zur Verdeutlichung des erfindungsgemäßen Verfahrens zur Justage.
a schematic representation of a light grid according to the invention;
a schematic representation of an adjusting device according to the invention;
a schematic representation of a second embodiment of the adjusting device according to the invention;
a schematic representation of a third embodiment of the adjusting device according to the invention;
a schematic representation to illustrate the inventive method for adjustment.
Figur 1 zeigt ein Lichtgitter mit einem ersten Gehäuse 2 und einem zweiten Gehäuse
18. In dem ersten Gehäuse 2 sind mehrere Lichtsender 28 mit Sendeoptiken
26 welche zu Empfangsoptiken 24 in dem zweiten Gehäuse 18 korrespondieren.
Die optische Achse der Lichtsender 28 als auch die optische Achse der
Lichtempfänger 22 sind dabei exakt innerhalb dem jeweiligen Gehäuse justiert.
Im zweiten Gehäuse 18 ist dabei ein Ausrichtlichtsender 20 angebracht dessen
Richtstrahl 4 zur optischen Achse der Empfangsoptiken 24 parallel ausgerichtet
ist. Dieser Richtstrahl 4 trifft in dem ersten Gehäuse 2 auf eine Justiervorrichtung
1 die selbst zu den Lichtsendern 28 und den Sendeoptiken 26 ausgerichtet
ist, so daß bei korrekter Ausrichtung des Richtstrahl 4 auf die Justiervorrichtung
1 das Lichtgitter ausgerichtet ist.FIG. 1 shows a light grid with a
Figur 2 zeigt in dieser ersten Ausführungsform die Justiervorrichtung 1 mit einem
Lichtleiter 8 in dem Gehäuse 2. Der Richtstrahl 4 trifft auf ein Fokussierungsmittel
6. Das Fokussierungsmittel 6 ist vorteilhaft als Linse ausgeführt. In
einer Brennebene 12 des Fokussierungsmittels 6 ist der Lichtleiter 8 mit seiner
Lichteintrittsöffnung 10 angebracht. Der Lichtleiter 8 wird dabei vorteilhaft zentrisch
in der Brennebene 12 des Lichtleiters 8 angebracht. Eine Lichtaustrittsöffnung
14 des Lichtleiters wird für den Betrachter vorteilhaft am Gehäuse 2 oder
außerhalb des Gehäuses 2 angebracht.Figure 2 shows in this first embodiment, the adjusting
Ist das Gehäuse 2 so ausgerichtet, daß der Richtstrahl 4 parallel zur optischen
Achse der Justiervorrichtung liegt, wird der Richtstrahl 4 direkt in die Lichteintrittsöffnung
10 des Lichtleiters 8 gerichtet. Die Lichtaustrittsöffnung 14 des
Lichtleiters 8 zeigt dann dem Betrachter dies an. Wird nun das Gehäuse 2 in einem
Winkel 32 verändert dann trifft der Richtstrahl 4 nach dem Fokussierungsmittel
6 nicht in die Lichteintrittsöffnung 10 des Lichtleiters 8. Bei einer solchen
nicht optimalen Ausrichtung wird über die Lichtaustrittsöffnung 14 weniger oder
kein Licht mehr ausgegeben. Auf diese Weise erfolgt eine Justierung des Gehäuses
2 auf den Richtstrahl 4 und damit eine Justierung der Lichtsender 28 die
Lichtempfänger 22.Is the
Figur 3 zeigt eine weitere Ausführungsform der Justiervorrichtung 1 mit einem
Bildleiter 16 anstelle des Lichtleiters 8 in dem Gehäuse 2. Der Bildleiter 16 ist
zentrisch in der Brennebene 12 des Fokussierungsmittels 6 mit seiner Lichteintrittsöffnung
10 angebracht. Trifft nun der Richtstrahl in verschiedenen Winkeln
auf das Fokussierungsmittel 6 tritt dieser an verschiedenen Positionen in die
Lichteintrittsöffnung 10 des Bildleiters 16 ein. Die verschiedenen Eintrittspositionen
werden auf die Lichtaustrittsöffnung 14 des Bildleiters 16 abgebildet und
dem Betrachter angezeigt. Wird nun das Gehäuse 2 in einem beliebigen Winkel
32 verändert und trifft der Richtstrahl 4 auf das Fokussierungsmittel 6, und in
den Bildleiter 16, so wird bei einer nicht optimalen Ausrichtung der Richtstrahl 4
nicht zentrisch in der Lichtaustrittsöffnung 14 angezeigt.Figure 3 shows a further embodiment of the adjusting
Figur 4 zeigt eine dritte Ausführungsform der Justiervorrichtung 1 mit mehreren
Lichtleitern 8. Der eintreffende Richtstrahl 4 trifft auf das Fokussierungsmittel 6
und danach auf eine von mehreren Lichteintrittsöffnungen 10 von mehreren
Lichtleitern 8 die symmetrisch in der Brennebene 12 angebracht sind. Je nach
der Justage des Gehäuses 2 wird der Richtstrahl 4 in verschiedene Lichtleiter 8
gelenkt. Die geometrische Anordnung der Lichteintrittsöffnungen 10 entspricht
dabei der geometrischen Anordnung der Lichtaustrittsöffnungen 14. Trifft der
Richtstrahl 4 in der Brennebene 12 die Lichteintrittsöffnung in Figur 4 des unteren
Lichtleiters 8, so leuchtet die Lichtaustrittsöffnung 14 des unteren Lichtleiters
8. Die Ausrichtung wird dem Betrachter somit schlüssig angezeigt.FIG. 4 shows a third embodiment of the adjusting
Die Figuren 5 bis 7 zeigen Ausführungsbeispiele für das Ausrichtverfahren mit
der Justiervorrichtung 1 nach der dritten Ausführungsform. In Abbildung 5 ist die
Justiervorrichtung 1 in Pfeilrichtung 34 um die Achse 36 verdreht. Die Lichtleiter
8 sind dabei wie in der Figur 4 angeordnet. Der Betrachter blickt von vorne auf
die Justiervorrichtung 1. Ist die Justiervorrichtung in Pfeilrichtung 34 um die
Achse 36 gedreht, so leuchtet vom Betrachter aus die linke Anzeige auf. Der
Betrachter ist damit aufgefordert die Justiervorrichtung 1 entgegengesetzt zur
Pfeilrichtung 34 um die Achse 36 zu drehen.FIGS. 5 to 7 show exemplary embodiments of the alignment method
the adjusting
In Abbildung 6 ist die Justiervorrichtung 1 in Pfeilrichtung 40 um die Achse 38
verdreht. Die untere Anzeige leuchtet auf. Der Betrachter ist damit aufgefordert
die Justiervorrichtung entgegengesetzt zur Pfeilrichtung 40 um die Achse 38 zu
drehen.In Figure 6, the adjusting
In Abbildung 7 ist die Justiervorrichtung 1 in Pfeilrichtung 34 und 40 um die Achsen
36 und 38 gedreht. Es leuchtet die linke und untere Anzeige auf. Der Betrachter
ist hier aufgefordert die Justiervorrichtung 1 entgegengesetzt der Pfeilrichtungen
34 und 40 um die Achsen 36 und 38 zu drehen.In Figure 7, the
Claims (12)
dadurch gekennzeichnet, dass
in dem vom Richtstrahl (4) beaufschlagten Gehäuse (2) wenigstens ein Fokussierungsmittel (6) und wenigstens ein Lichtleiter (8) derart angeordnet sind, dass eine Lichteintrittsöffnung (10) des Lichtleiters (8) sich in einer Brennebene (12) des Fokussierungsmittels (6) befindet und eine Lichtaustrittsöffnung (14) des Lichtleiters (8) sichtbar angeordnet ist.Adjusting device, in particular for light barriers or light grids for aligning a housing (2) with a directional beam (4)
characterized in that
in which the directional beam (4) acted upon housing (2) at least one focusing means (6) and at least one light guide (8) are arranged such that a light inlet opening (10) of the light guide (8) in a focal plane (12) of the focusing means ( 6) and a light exit opening (14) of the light guide (8) is arranged visible.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004025751 | 2004-05-26 | ||
DE102004025751A DE102004025751A1 (en) | 2004-05-26 | 2004-05-26 | Adjusting device, in particular for light barriers or light grids and method for adjustment |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1600684A1 true EP1600684A1 (en) | 2005-11-30 |
EP1600684B1 EP1600684B1 (en) | 2008-02-20 |
Family
ID=34935080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05008029A Not-in-force EP1600684B1 (en) | 2004-05-26 | 2005-04-13 | Adjusting device particularly for light curtains or light barriers and method of adjusting |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1600684B1 (en) |
AT (1) | ATE386901T1 (en) |
DE (2) | DE102004025751A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2985636A1 (en) * | 2014-08-11 | 2016-02-17 | Leuze electronic GmbH + Co KG | Method for aligning a sensor device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006050189B4 (en) * | 2006-10-25 | 2008-07-17 | Sick Ag | Light grid with alignment light transmitter and alignment method |
DE102006053359C5 (en) * | 2006-11-10 | 2015-12-10 | Sick Ag | Optoelectronic sensor arrangement and method for adjusting an optoelectronic sensor arrangement |
DE102006056648A1 (en) | 2006-11-29 | 2008-06-05 | Sick Ag | Opto-electronic sensor |
DE102013103810B4 (en) * | 2013-04-16 | 2016-11-03 | Leuze Electronic Gmbh + Co. Kg | Optical sensor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0889332A1 (en) | 1997-06-30 | 1999-01-07 | Cedes AG | Light curtain or light barrier with aligning aid |
DE10151327A1 (en) * | 2001-10-17 | 2003-04-30 | Sick Ag | Optoelectronic device, such as a light barrier, has a flexible optical fiber coupling unit that means the transmission and receiving units can be flexibly aligned |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2516875A1 (en) * | 1975-04-17 | 1976-10-28 | Visomat Geraete Gmbh | Reflex light barrier target device - has luminescence diode as light transmitter and photoelectric transducer as light receiver |
DE3013967C2 (en) * | 1980-04-11 | 1984-08-09 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Adjustment arrangement for light grids |
DE10156911B4 (en) * | 2001-11-21 | 2004-07-22 | Sensopart Industriesensorik Gmbh | Device for determining or adjusting a point of impact and alignment aid |
-
2004
- 2004-05-26 DE DE102004025751A patent/DE102004025751A1/en not_active Withdrawn
-
2005
- 2005-04-13 EP EP05008029A patent/EP1600684B1/en not_active Not-in-force
- 2005-04-13 DE DE502005002873T patent/DE502005002873D1/en active Active
- 2005-04-13 AT AT05008029T patent/ATE386901T1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0889332A1 (en) | 1997-06-30 | 1999-01-07 | Cedes AG | Light curtain or light barrier with aligning aid |
EP0889332B1 (en) * | 1997-06-30 | 2001-10-31 | Cedes AG | Light curtain or light barrier with aligning aid |
DE10151327A1 (en) * | 2001-10-17 | 2003-04-30 | Sick Ag | Optoelectronic device, such as a light barrier, has a flexible optical fiber coupling unit that means the transmission and receiving units can be flexibly aligned |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2985636A1 (en) * | 2014-08-11 | 2016-02-17 | Leuze electronic GmbH + Co KG | Method for aligning a sensor device |
US9503184B2 (en) | 2014-08-11 | 2016-11-22 | Leuze Electronic Gmbh + Co. Kg | Method for aligning a sensor device |
Also Published As
Publication number | Publication date |
---|---|
ATE386901T1 (en) | 2008-03-15 |
DE102004025751A1 (en) | 2005-12-22 |
DE502005002873D1 (en) | 2008-04-03 |
EP1600684B1 (en) | 2008-02-20 |
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